Alf,
I do not know if you have had the opportunity to meet and talk to another member here and well known advocate David Emerson. He was diagnosed at the age of 42 with a PSA of 271. He has ridden your roller coaster now for almost 6 years. He uses the screen name of David E(FLHW) here at HealingWell. If you have met him then you know the power of a positive attitude and huge heart. If you have not, here is his webpage:
prostatecancerat42.blogspot.comHe is very accessible and very versed in protocols you have yet to try. If you would like his email address send me a message and I will get it to you. I know other stories and people that have travelled your road ahead and I will help in any way I can to get you resources.
Hang in there. There is still very much to be hopeful about
.
Peace to you and all around you!
Tony